360 Magnum Build w/ V Belt Configuration Question

Yup. Mine is Magnum intake bolt pattern, Magnum thermostat location and size, and Magnum bypass hose.
Yours is the same basic manifold with Magnum intake bolt pattern, LA thermostat location and size, and LA bypass hose.
The M1 manifolds had quite vast array of configurations. Too bad they discontinued all of these. They are good pieces.

Note: this response was just to detail these configurations for anyone looking for info on one of these intakes. There was also LA intake bolt pattern with either LA or Magnum thermostat and bypass hose as well. Then, all of these configurations were available in single plane both with and without fuel injection bosses in each runner. Lots of part numbers.